Warp-leasing machine



4 Sheets-Sheet 1 \WLWY QR- E. F. HATHAWAY WARP LEASING MACHINE Original Filed-Jan. 15, 1919 EdgomT. odh w a \0\ \h. Rm.

April 14, 1925.

April 14,1925.

E. F. HATHAWAY WARP LEASING MACHINE Originai Filed Jan. 13, 1919 4 sheegzshe ee 2 \MYMjQR 4 xa am. ocmwm April 14, 1925. h

, E. F. HATHAWAY WARP LEASING MACHINE Original Filed Jan. 15, 1919 4 Sheets-Sheet 4 2 \c s b Patented Apr. 14, 1925.

UNITED STATES v, 1,533,799 PATENT orrice.

EDGAR n. HATHAWAY, or mummy, messacnnsnrrs, l mm BY intestines SIGNMENTS, :ro .BARBIEB-GOLMAN ooMPANuor ROCKFORD, ILLInoIs, A CORPORA- TION or ILLINOIS 1922 WARP-LEASING MAOHINE.

Application filed January 13, 1919, Serial No. 270,892. ReneWed'July 21, 1923.

Z '0 (ZZZ whom it may concern: 1

lie it known that I, EDGAR 1*. HATHAWAY, a citizen of the United States, and a .lesident of Wellesley, in the county of Norfolk and COHHHOHWGHlTh of Massachusetts, have invented Improvements in arp-Leasing Machines, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts. I

This invention relates to warp leasing machines and is more particularly intended to provide an efficient but simple and rapidly working mechanism for placing the threads of the warp in leased arrangement. The invention will best be understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings: c

Figure 1 is an elevation, partially in section and partially broken away, of the principal elements of a machine embodying my invention Fig. 2 is a transverse section showing most of the parts of Fig. 1 in end elevation;

Fig. 3 is a plan corresponding to Fig. 1;

Figs. -l-.7 are details showing the thread l-iandling devices in different phases of their movement Fig. 8 is a view of certain of the parts shown in Fig.6 as viewed from the left of that figure; and I y s Fig. 9 is a similar view, the parts being in a phase of their movement intermediate between those shown in Figs. 6 and 7.

I In the form of machine herein disclosed the warp is supported at spaced points and has relative traversing movement with suit able leasing devices includinga pair of leasing members. such as lease rods, about which the threads of the warp are successively disposed in alternating arrangement above and below said members with the line of thread crossings'between the two members. I

In the present instance the warp is held stationary and the leasing mechanism advances relatively to the Warp, and for this purpose (see Fig. 2) it may be mounted on a carriage 11 adapted to advance along the main frame13 of the machine, only a portionof which is shown in the drawing". It will "be understood that this "main frame may provide for the'support of suitable clamp-- ing' means 15 and 17., shown in dotted lines in Fig. 2,. for supporting the warp. For example, the clamp 15 may the supported in suitable brackets" ,on t-he frame of the ma chine and the clamp 17 either depend freely therefrom, tensioning the warp by gravity over the rod 51 thereafter to'be neferred to, or have meansassociated with the frame for applying tension. This mounting; of the warp may be effected in any suitable manner or specifically as described and illustrated in my lcopending application, Serial No. 270,893, filed Jan. 13,, 1919. In the present embodiment of the invention the traverse of the carriage may be effected .by a lead screw 19 j ournalled in the frame of the machine and taking motion by suitable means not herein shown, from the main drive shaft 21. The driving rneans'may be and preferably is similar to that shown in the patent to Lea, No. 1,090,4l01, dated March 17, 1914, and adaptedto give-an intermittent rotation to the head screw by which the carriage is intermittently advanced. To drive the carriage from the lead screw, the former carries a nut 28 adapted to engage thelat-ter. To permit the operator to move the carriage quickly from one part of the bed .to the other, the nut is split and the two sections-connected by the segmental gem-s25. one of which has connected thereto the handle 27 having the spring-pressed pin: 29 adapted [to engage an opening in bracket 31 of the carriage bed, being therebylocked in its lowermost or carriage-feeding position. If the pin is withdrawn, the lever may be lifted to the dotted linepo-sition of F 2, Where the pin will engage. with. shoulder 33 on the bracket 31., moving the halves of the feed nut 23 from the. lead screw and permitting the carriage to "be adjusted independently of the motion of the screw.

The carriage 11 carries with it in its movement devices for separating the threads of the warp and for engaging each one in leased position under and over the leasing members, herein shown as a pair of non-rotary lease rods 35 and 37 which preferably have suitable provision for retaining thereon threadswhich have been placed in leased position over the Same. Hereinthis is offected by forming the rods with downwardly directed hooked or barbed ends 39, 41, similar to a crochet needle. The lease rods 35 and 37 (see Fig. 3) are also mounted on the carriage and presented endwise transversely to the warp threads and preferably at a different level. Herein there is mounted on the carriage a rod 43 extending rearwardly to any desired extent and the overhanging end of which may be supported in any suitable manner, as for example by wheels on standards both on the machine frame and independent thereof, not here shown, which rod provides a support for uprights 45 carrying wheels 47 on which the lease rods rest.

Means is provided for separating or spacing the unleased threads of the warp as the lease rods 35 and 37 in the travel of the carriage approach said threads. Any suitable or common construction may be employed for separating or spacing the threads. In the present embodiment I utilize a thread separating device of the type shown in Letters Patent to Field, No. 1,282,059, dated Oct. 22, 1918, embodying a wa-rp-separating worm 49 which may be in the form of a sleeve slidably mounted on a rod 51 of the machine frame and advanced itherealong with the carriage. Theadvancing end of the threadseparating worm is preferably given a formation such as the fluted tapered form illustrated, so that the threads which are first engaged by the advancing sleeve are smoothed out and placed under an increasing tension. As they advance up the sleeve they are engaged by the thin, wedgeshaped lip 53 (Fig. 3) of the worm and the threads are picked off one by one, passing into the end of the groove 55 the pitch of which rapidly increases. The series of threads engaged by the worm are thus spread apart as will be well understood. The separated threads, after being leased in the-manner hereinafter to be described, pass off from the worm to a stationary shield or apron 57, shown broken away in Fig. 3, which is fitted into a groove on the back end of the worm and prevents contact between the threads and the driving connections for the worm hereinafter to be described. The threads are delivered by this apron to the stationary rod 51 as the worm advances with the leasing carriage. I

As the threads approach the point where they are leased, they are further positioned by means of a longitudinal supporting member 59 having (see Fig. 1) an inclined forward end 61. The intermediate stretches of the threads between the clamping members ride up along this support and are stretched between the same and the worm 49 in proper position relatively to the lease rods, as indicated in Fig. 2.

I shall next describe the action of the mechanism which carries the separated threads one after the other into leased position over the lease rods and for this purpose shall refer particularly to Figs. 49. In the machine shown I provide means for looping the bights of successive threads, that is the portions of the threads extending between the supports providedby the worm 49 and the member 59, under the two lease rods 35 and 37 alternately. For this purpose I provide (see Fig. 2) two elements 61 and 63 adjacent to and movable past the ends of the two rods respectively and longitudinally thereof. In the present embodiment the elements 61 and 63 operate between the vertical planes of the lease rods. I have herein shown these elements as taking the form of arms having hooked ends to engage the threads and adapted to swing on a transverse shaft 65 past the ends of the re spective lease rods. Herein each also forms one arm of a bell crank lever the other arm of which cooperates with a cam or wiper, 67 in one instance and 69 in the other. These cams swing the arms in opposite phase. Referring to Fig. 9, when the hooked end of the arm 61 has engaged the bight of the thread, the latter is extended at an angle between the worm 49 and the support 59, the apex of this angle being adj acent and below the end of the lease rod 37,

and the parts are so proportioned that the lease rod 35 lies exterior to the sides of the angle so that as the arm 61 continues its swinging movement, away from the reader in Fig. 9, the thread engaged thereby is carried under the lease rod 37 and over the lease rod 35. This action will be more fully described in connection with the following description of the rest of the mechanism disclosed in the present embodiment.

In the form of the invention here shown and as indicated in Fig. 4, the threads which extend between the worm 49and the support 59 are extended in a warped surface, which for practical purposes is substantially =a plane, said surface or plane being different from that of the lease rods and in this case above the same. The hooked ends of the arms 61 and 63, however, vibrate in a plane beneath-the lease rods. I therefore provide means for depressing a thread which has been separated from the rest by means of the separating worm 49 into proper position to be engaged by whichever ot' the arms 61 and 63 will next act in the cycle of the ma chine. For this purpose I may providea barbed needle or hook 71 the hooked end of which travels in an orbit that intersects the plane of the warp. The needle 71 is conveniently positioned centrally between the arms 61 and 63, as indicated in Fig. 2, and adapted tomove upwardly, entering behind the first of the unleased threads which has just been positioned by the separating worm 49. The book 71 then moves downwardly,

drawing the bight of the thread into the path of the two arms 61 and 63, as shown in Fig. 5. One of the arms, herein thearm 61 (see Fig. 6), swings forwardly and'engages the thread at about the time when the hook 71 reaches its lowest position, and as the hook rises therefrom toward the position shown in Fig. 7 it releases "the thread to the bent-over or hooked end of the arm 61 and permits it to snap into the angular position shown in Fig. 9 as the arm'fil continues its movement past the end of the rod 37. The thread is thus carried underneath the 1'od37 and over the rod '35, and as the arm (51 swings backwardly again it will be prevented from slipping back over the end of the rod 37 by the hooked end 11 of the latter. It will be understood that the arm 63 acts in alternation with the arm 61, causing alternate threads to be carried over the lease rod 35 and under the lease rod 37. a

Any suitable means may be utilized for operating the hook 71. I have here shown it as mounted on a crossbar 73 carried on the end of a rod 75 adapted to slide in a swinging block 77. The lowermost end of the rod 75 may be operated by suitable eccentric means herein shown as a crank disc 79. The manner in which the crank moves the hook 71 in the proper path will be clearly understood from the several Figures 4 "to 7 inelusive. Herein (see Fig. 3) the crossbar 73 is provided with a series of openings 81 each one of which is adapted to receive the end of the rod 75, thus permitting the position of the hook to the right or left in Fig. 8 to be adjusted. To permit swinging movement of the block 77, it i'nay be provided with a stud S2 journaled in a suitable bracket on the carriage, as best shown in Fig. 3.

Having described the essential elements of the mechanism shown in the accompanying drawings, I shall next explain the par ticular manner in which they are driven in the illustrated embodiment. Referring to Figs. 1 and 3, I afiifv to the carriage a suitable depending bracket 83 on which is mounted a pinion S feathered, as shown in F 2, to the main drive shaft 21 to slide therealoug in the traversing movement of the carriage. As best shown in Fig. 2, this pinion 85 through the gear train 87, S9 drives a counter shaft 91, best shown in Fig. and the various devices which move with the carriage herein take their motion from this counter shaft.

I shall first describe the manner in which the warp worm 19 is rotated on the supporting rod 51 and shall refer particularly to Fig. 2. Herein a shaft 93 extending transversely of the carriage 11 is journalled in bracket 94 and driven from the counter shaft 91 by mitre gears, as shown, and this shift is clutched to an aligned shaft 95 supported in bracket 97 from which shaft the mitre gear 99 takes its motion, in the manner illustrated. This gear 99 meshes with the mitr'e gear 101 embracing rod 51 and secured to the end of the warp worm 19. The intermeshing gears 99 and 101 are shielded, so as to prevent the threads from coming in contact with them, by the overhanging apron 57 already referred to.

To clutch the shaft 93 to the shaft 95, the former has feathered thereon the collar 108 normally pressed to the right by the spring 105 and having a tooth adapted to engage an opening in collar 109 secured to the end of shaft 95. If it is desired to adjust the warp worm 419 rotatively, the collar 103 may be withdraivn, disengaging the clutch, and the shaft 95 rotated by hand by means of the knurled wheel 111 provided on the collar-109. a I

I shall neXt describe the manner in which the arms '61 and 63 and the hook 71areactuated; To oscillate the arms (31, 63 (see Fig. 3), a transverse shaft 113 is provided on the carriage driven by mitre gears from the counter shaft 91. This shaft is a cam shaft on which are fixed the two cams 67 and 69 cooperating with the follower arms of the bell crank levers of which the -arms 61, 63 form a part, these levers being journa l led-on a shaft. supported on suit-able brackets 115 on the carriage 11. I have here shown a gear 117 on theshaft 113 meshing (see Fig. 1) with the pinion 119 on a short shaft 121 at the other end of which is journalled the crank wheel 79 which oper ates rod 7 5 in the manner already described.

In Figs. 2 and 3 I haveshown a gage element 123 having a point 125 serving as a; guide for positioning angularl'y the threads to .be leased, as clearly indicated in Fig. 3.

I have described in detail the various elements disclosed in the particular embodiment of myinvention chosen for purposes of illustration, and in doing so have referred to the various parts by the specific names, but with an identifying or descriptive rather than a definite purpose. The principles e'xemplified by the particular example shown and described which I claim as new and desire to secure by Letters Patent I shall express in the following claims 1. A leasing machine having, in combination, t'wo spaced supports between which a sheet of warp threads extends, operating mechanism, and means for causing relative travelling movement between said warp supports and said mechanism, said mechanism comprising a thread-selector and spacer mounted on one of said supports, two leasing members located between said selector and the other support, a hook to engage a thread which has been spaced by said selector and spacer and draw said thread out of the plane of the warp, said hook operating between the leasing members, two hooked arms mounted to move past the ends of the leasing members respectively and longitudinally thereof, and means to oscillate said arms in opposite phase to take threads from said hook and place them in engagement with the leasing members.

2. A leasing machine having, in combination, two spaced supports between which a sheet of warp threads extends, operating mechanism, and means for causing relative travelling movement between said warp sup ports and said mechanism, said mechanism comprising a thread-selector and spacer mounted 011 one of said supports, two leasing members located between said selector and the other support, a hook to engage a thread which has been spaced by said selector and spacer and draw said thread out of the plane of the warp, and means to take threads from said hook and place them in engagement with the leasing members.

3. A leasing machine having, in combination, two spaced supports between which a sheet of warp threads extends, operating mechanism, and means for causing relative travelling movement between said warp supports and said mechanism, said mechanism comprising two leasing members, a threadspacer mounted on one of said supports, and leasing mechanism operating between said spacer and the other support for placing in engagement with the leasing members threads which have been spaced by the thread-spacer.

4. A leasing machine having, in combination, two spaced supports between which a sheet of warp threads extends, operating mechanism, and means for causing relative travelling movement between said warp supports and said mechanism, said mechanism comprising a thread-spacer mounted on one of said supports, two leasing members lo cated between said spacer and the other support, and means toplace in engagement with the leasing members threads which have been spaced by the thread-spacer.

5. A leasing machine having, in combination, a bed, a warp-supporting rod extending longitudinally thereof, means cooperating with said rod to support a sheet of threads over the bed, a carriagemounted on the bed to travel below the sheet of threads, a thread-spacing device mounted on said carriage and slidable upon said rod into engagement with threads extending over the rod, leasing members moving with the carriage below the plane of the warp threads which have been spaced by said thread spacer and devices on the carriage to take threads which have been spaced by said thread spacer and carry them alternately under and over each leasing member.

6. In a leasing machine, in combination, two hooked leasing elements, two hooked arms mounted to move past the ends of said elements respectively and longitudinally thereof to deliver single threads alternately to said leasing elements, means to oscillate said arms in opposite phase, and threadengaging means movable to draw threads downwardly across the paths of said arms.

7. In combination, a pair of leasing elements, means for supporting a warp thread at spaced points and extending transversely of said elements, a pair of thread-moving devices successively movable to and fro longitudinally past the ends of said elements respectively to deliver single threads alternately to said leasing elements, each element lying outside the angle subtended by said points of support at the non-corresponding threadanoving device, and means for displacing a thread into the path of said clevices.

8. A leasing machine having, in combination, a bed, a warp-supporting rod extending longitudinally thereof, means cooperating with said rod to support a sheet of threads overthe bed, a carriage mounted on the bed to travel below the sheet of threads, a member mounted on the carriage up which the threads ride and are therebyv stretched, a thread-spacer on said carriage, leasing members moving with the carrriage below the plane of the stretched warp threads and bet-ween the spacer and said stretching member, and devices on the carriage to take threads which have'been spaced by .said thread-spacer and carry them alternately under and over each leasing member.

9. A leasing machine having, in combination, means for spacing warp threads, a hooked member to draw threads singly and successively out of the plane of the warp, two leasing members, two hooked arms mounted to move past the ends of said leasing members respectively and longitudinally thereof, and means to oscillate said arms in opposite phase to take threads from said hooked member and move them into engage ment with said leasing members.

10. A leasing machine having, in combination, means for spacing warp threads arranged substantially in a. plane, a hooked lnen'iber, means for imparting an orbital movement to the hook of said member, said orbit intersecting the plane of the warp, two leasing members, two hooked arms mounted to move past the ends of said leasing members respectively and longitudinally thereof, and means to oscillate said arms in opposite phase to take threads from saidhooked member and move them into engagement with said leasing members.

11. A leasing machine having, in combination, means for spacing warp threads arranged substantially in a plane, a hooked member, means for imparting an orbital Cir l l l l movement to the hook of said member, said orbit intersecting the plane of the warp, two leasing members, and two members having hooks arranged to move past the ends of said leasing members respectively and longitudinally thereof to take threads from the first mentioned hooked member and move them into engagement with said leasing memhers.

12. A, leasing machine having, in combination, means for spacing warp threads, a hooked member, means for imparting an orbital movement to the hook of said member, said orbit intersecting the plane of the warp, two leasing members, and means for taking threads from said hooked member and carrying them alternately under and over each leasing member.

13. A leasing machine having, in combination, means for spacing warp threads, a

hooked member to draw threads singly and successively out of the plane of the warp, two leasing members, and means for taking threads from said hooked member and carrying them alternately under and over each leasing member.

14. A leasing machine having, in combina tion, means for spacing warp threads, two

non-r0tatable lease rods each having at its,

forward end a downwardly-directed threadretaining hook, a hooked member operating between said lease rods, means for moving said hook to engage and pull downwardly a spaced thread, and two members located between the lease rods and at opposite sides of the hooked member, said two members having hooks arranged to move past the ends of the lease rods and longitudinally thereof to take threads from the first-memtioned hooked member and carry them alternately under and over each lease rod.

15. A leasing machine having, in combination, means for spacing warp threads, two non-rotatable lease rods located below the horizontal plane of a spaced thread, each rod having at its forward end a. downwardlydirected thread-retaining hook, two members located between the vertical planes of the lease rods, and means to engage and pull downwardly a spaced thread at a point between said members, the latter having hooks arranged to move past the ends of the lease rods and longitudinally thereof to take threads from said pulling means and carry them alternately under and over each lease rod.

16. A leasing machine having, in combination, means for spacing warp threads, two lease rods, means to engage and pull downwardly a. spaced thread at a point be tween the lease rods, and two members located at oppositesides of the pulling means, said members having hooks arranged to move past the ends of the lease rods and longitudinally thereof to take threads from the pulling means and carry them alternately under and over each lease rod.

17. A leasing machine having, in combination, means for spacing warp threads, two lease rods, means to engage and pull downwardly a spaced thread at apoint between the lease rods, two members located at opposite sides of the pulling means, said members being ar 'anged to take threads from the pulling means and carry them alternately under and over each lease rod.

18. A warp leasing machine having, in combination, a frame adapted to hold a sheet of warp threads, a leasing mechanism on the frame adapted to travel transversely of said threads, said mechanism carrying leasing members movable inthe plane of said threads, inclined means externally adjacent said members to move the threads out of the plane of the leasing members for the leasing operation, a spacing worm associated with one of said inclined means to space the offset threads, Withdrawing means adapted to move a single spaced thread, and reciprocating elements for each leasing member adapted to engage said thread and to secure it under one of said leasing members;

19. In a warp leasing machine, having means to support a sheet of warp threads and a mechanism adapted to lease said warp threads, said mechanism comprising leasing elements adapted to travel in the plane initially occupied by said sheet of threads, means tomove the threads out of said plane preceding theleasing operation whereby the threads are stretched, said means being adapted to return the threads into substantially the same initial plane after the leasing operation.

In testimony whereof, I have signed my name to this specification.

EDGAR, F. I-IATHAVAY. 

